Car-brake.



No. 639,4I6 Patented Dec. I9, |899.

J. LYKER.

GAR BRAKE. l (Application filed Oct. 7, 1899.).

(N0 Model.)

Wi'lgcsscs PATENT erica.

JOHN LYKER, OF ROOT, NEW YORK.

CAR-BRAKE.

SPECIFICATION forming part of Letters Patent No. 639,416, dated December19, 1899.

Application filed October '7 1 8 9 9 Serial No. 732,916. (No model.)

T all whom, it uta/,y concern:

Be it known that I, JOHN LYKER, a citizen of the United States, residingat the town of Root, in the county of Montgomery and State of New York,have invented a new and useful Oar-Brake, of which the following is aspecication.

This invention relates to car-brakes, and more particularly to thatclass known as hand-operated and it has for its object to provide acombination and arrangement of brake-shoes which will simultaneouslyengage the wheels of a vehicle and also the track, the arrangement beingsuch that the trackshoes are wedged into place and the wheelshoesimpinge the inner faces of the wheel instead of the treads, as is usual.

In the drawings forming a portion of this specification, and in whichsimilar numerals of reference designate corresponding parts in theseveral views, Figure 1 is a side elevation showing the application ofthe brake mechanism at one end of the car. Fig. 2 is a bottom plan Viewof a portion of a truck carrying a pair of wheels and having the brakemechanism connected therewith.. Fig. 3 is a rear elevation of Fig. 1with the truck sides in place. Fig. 4 is a detail perspective ofa trackbrake-shoe.

Referring now to the drawings, 5 represents the platform of a car, towhich is connected in the usual manner a truck comprising sides 6,havinga wheel-axle 7 j ournaled at its ends in said sides. The centrallportion of the axle 7 is enlarged, as shown, and results in theformation of shoulders 9, between which and the wheels 10, which aremounted upon `the reduced portions, are arranged brake-levers l1, havingjournal-boxes, (shown in dotted lines in Fig. 1,) in which the axle 7turns.

I These brake-levers l1 extend rearwardly and sion into operativeposition by means of wedge-blocks 15, which are pivotally connected tohangers 16 upon the under side of the platform 5, and which wedge-blockshave arcshaped lower ends 17, adapted for engagment with the uppersurfaces of the brake-levers 11. The blocks are connected by means of atransverse beam 1S, to which is attached a chain 19, leading to a drum2O upon a brakeshaft 21, journaled in the platform 5 in the usual mannerand having an operating-crank 22. Thus by winding the chain 19 upon thedrum 20 the blocks l5 will be drawn with their lower ends 17 in slidablecontact with the levers 11 and will act to depress the latter and forcethe surfaces 13 against the treads of the rails to stop the car. Each ofthe levers 11 has a second brake-shoe 25 fixed thereto upon its outerface and in a position to engage the inner face of the adjacent wheel 10when its respective leverll is moved with its loweiuend outwardly uponthe axle 7 as a fulcrum, the bearings of the levers 11 beingsufficiently loose to permit this movement.

In order to move the rear ends of the levers 1l outwardly to engage theshoes 25 with the wheels 10, a toggle-lever has its links 26 and 27pivotally connected with the rear ends of the levers 11 through themedium of bifurcations 28, between which the levers are received and towhich they are pivoted. In order to connect the links 26 and 27, theinner end of the link 26 is bifurcated and has a block 29, rotatablymounted between the bifurcations. Diametrically of the block 29 ispassed an eyebolt 30, which also passes through slots formed in thebifurcations of the inner end of the element 27, and which bifurcationsare disposed to inclo'se the block 29. A branch of the chain 19 isconnected with the eye of the bolt 30, and thus may the toggle-lever andwedge-blocks be operated simultaneously.

From the above description it will be seen that when the crank 22 isoperated the chain 19 will be wound upon the drum 20, at which time thewedge-blocks 15 will force the shoes l2 into engagement with the track,.and simultaneously therewith the toggle-lever will move the levers 11outwardly at their lower ends and will force the shoes against the innerfaces of the wheels 10, bringing both sets of shoes into operativeposition at the IOO saine time. In order to hold the shoes normallyretracted, springs 33 are Xed to the rear ends of the levers ll and tosuitable points upon the platform at its under side. The Wedge-blocks l5are of such proportions that they never lie upon their dead-centers, andthe ends of them have such curvature that the pull of the springs 33will force them backwardly when released by the chain 19.

'Also the links 26 and 27 never reach a straight line, and the springs33 being disposed iu- Wardly, as shown in Fig. 3, the shoes 25 arequickly moved from the wheels l0.

It willof course be understood that in practice the specificconstruction and arrangement shown may be altered and that any desiredmaterials and proportions may be used without departing from the spiritof the invention.

Vhat is claimed isl. In a brake mechanism, the combination withbrake-levers having shoes upon their outer faces and additional shoes attheir lower ends, of means for simultaneously moving the leversoutwardly and downwardly to operate the shoes.

2. The combination with an axle and wheels thereof, ot brake-leversfulcru med upon the axle, shoes upon the outer faces of the leveradapted for engagement with the inner faces of the Wheel, shoes upon theends of the levers adapted for engagement with the track, and means formoving said levers with their shoes simultaneously outwardly and down-Wardly to operate the shoes.

3. The combination with a car and the Wheels thereof, of brake-levershaving shoes adapted for engagement with the wheels, additional shoesupon the levers adapted for engagement withA the track, Wedgeblocksadapted to move the levers to operate the track-shoes, a toggle-leverarranged between and connected with the brake-levers to move themoutwardly ,and engage the Wheel-shoes with the wheels, and means foroperating the blocks and toggle-levers.

et. The combination with a car and the wheels thereof, of brake-levershaving shoes adapted for engagement with the Wheels, additional shoesupon the levers adapted for engagement with the track, wedge -blocksadapted to move the levers to operate the track-shoes, a toggle-leverarranged between and connected with the brake-levers to move themoutwardly and engage the wheel-shoes with the wheels, and a common meansfor operating the blocks and toggle-lever simultaneously.

5. The combination with a car and the wheels thereof having an axle, ofbrake-levers fulorumed upon the axle, shoes upon the levers adapted forengagement with the wheels, additional shoes pivoted to the levers andhavingfriction-faees adapted for engagement with the top and the side ofeach rail respectively, wedge-blocks pivoted to the car and adapted forengagement with the levers to' move the track-shoes against the uppersurfaces of the rails, a toggle-lever between and connected with thebrake-levers and adapted to move the Wheel-shoes against the wheels andthe track-shoes against the sides of the rails, means connected with thebrake-levers for returning the levers and wedge-blocks, and meansconnected with the Wedge-blocks and toggle-lever for operating them.

In testimony that I claim the foregoing as my own I have hereto afiixedmy signature in the presence of two Witnesses.

JOHN LYKER.

Witnesses:

WILLIAM WILES, W. H. FUNHUT.

